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26/04/2015 SAP Data Archiving By Gayatri Narendra Patil, Infosys Introduction Data Archiving | Marc Espley Academia.edu

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SAP Data Archiving By Gayatri Narendra Patil, InfosysIntroduction Data Archiving

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SAP Data Archiving

By Gayatri Narendra Patil, Infosys

Introduction

Data Archiving, in general means deleting the huge volumes of the data that is no longer required in the database to somefile system or any third party storage system. It is also a service provided by SAP for the consistent removal of dataobjects from database tables of the SAP database, where all table entries that characterize a data object are written to anarchive file outside the database.

Benefits of DATA Archiving

1. Reduces the costs of memory, disk and also administration costs.

2. Ensures cost efficient system upgrades and migration.

3. Improved system performance due to shorter response time.

4. Reduces the cost of maintenance and run of growing application infrastructure.

SAP Data Archiving Process Flow

SAP Data Archiving main involves three steps:

1. Creating the Archive files.

2. Run the delete programs.

3. Store the archive files.

Creating the archive file and running the delete programs are the mandatory steps to follow for data archiving whereasstoring the archive files is optional.

1. Creating the Archive files

In this step, a new archive file is been created and data to be archived is sequentially written in it.

2. Run the delete programs

In this step, the delete programs are executed which deletes the data from the SAP R/3 database, once the archiveddata is read successfully from the archive files.

The delete programs can be triggered manually or automatically.

3. Store the Archive files

Here, the archive file with the archived data is moved to the third party storage system or copied to disk, etc. This can alsobe triggered manually or automatically.

Dynamic Menu (tCode SDMO)

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A list of transaction codes along-with the short description required for SAP Archiving can be found in the dynamic menu.Go to transaction SDMO and enter search for the text as ‘ Archive’.

Click on execute button. The screen will be displayed as below.

What is Archiving Object?

Archiving Object is the central component of Sap Data Archiving. Archiving Object specifies which data is to be archivedand how. Archiving Objects directs the SAP Archiving system to get the correct tables associate with the specificBusiness Object. The archiving object name can be ten characters long in length.

Archiving objects are defined by the transaction AOBJ.



Fig.1. Archiving Object Details (AOBJ).

Identifying the Archive Objects

Transaction DB02 is used to identify tables with high growth in data volumes and to compare the table size afterarchiving and thus to monitor growth of the database tables.

Transaction TAANA which is used to identify the appropriate archiving object when a table has more than one archivingobject

Transaction DB15 is used to identify the Archive Objects, if you know the Database tables or if you know the ArchivingObject it displays the list of associated database tables for that particular Archiving Object as Shown in Fig.a.


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